Crystic Transfer Moulding Resin 782PA - 6122

Identification & Functionality

Chemical Family: Orthophthalics,
Polyesters
Polymer Name: Thermoset Polyester
Composite Materials Functions: Resins, Binders & Matrix Materials,
Surface Finish
Technologies: Composite Materials
Product Families: Composite Materials — Polymers & Resins
Thermoset Resins
Composite Materials — Surface Finishes
Gelcoats & Topcoats

Features & Benefits

Materials Features: Chemical Resistant,
Heat Resistance,
Highly Versatile
Features and Benefits: Crystic 782PA is a versatile resin, ideally suited to environments where heat and chemical resistance are both required.

Applications & Uses

Markets: Industrial
Applications: Industrial — Chemical & Industrial Manufacturing
Equipment & Parts
Composites End Use: Liners,
Pipes,
Tanks
Composites Processing Methods: Resin Transfer Molding (RTM)
Recommended Applications: Crystic 782PA was developed primarily as an RTM resin, but its properties make it suitable for use in other, similar techniques. It is recommended for use in applications throughout the chemical processing industry.
Formulation Guidelines: Crystic 782PA should be allowed to attain workshop temperature (18°C - 20°C) before use. It requires only the addition of a catalyst to start the curing reaction. The recommended catalyst is Trigonox 44B (acetyl acetone peroxide). Trigonox 524, an acetyl acetone peroxide/tert-butyl peroxybenzoate mixture developed specifically to obtain more efficient cure in RTM, can also be used.

Properties

Color: Green
Typical Liquid Resin Properties
Laminate properties
Resin Properties - Unfilled Casting (Cured)
Note: * Curing schedule – 24hrs at 20°C, 3hrs at 80°C
† Curing schedule – 24hrs at 20°C, 5hrs at 80°C, 3hrs at 120°C
** Made with 1 layer Rovicore 600 D3 600 Curing schedule – 24hrs at 20°C, 16hrs at 40°C

	Value	Units	Test Method / Conditions
Barcol Hardness (Model GYZ 934-1)*	45	—	BS or BS EN ISO test method
Deflection Temperature (under load 1.80 MPa) †*	125	ºC	BS or BS EN ISO test method
Water Absorption (24h, at 23°C)*	32	mg	BS or BS EN ISO test method
Tensile Strength*†	50	MPa	BS or BS EN ISO test method
Tensile Modulus*†	3584	MPa	BS or BS EN ISO test method
Elongation (at break)*	1.5	%	BS or BS EN ISO test method
Specific Gravity (at 20°C)*	1.2	—	BS or BS EN ISO test method

Technical Details & Test Data

Additives: The addition of pigment pastes, fillers or other additives can adversely affect the resin transfer molding process and properties of the cured laminate. Users should consult Scott Bader’s Technical Service Department before making any such additions.
Post Curing: For optimum properties, laminates made using Crystic 782PA should be post cured before being put into service. The laminate should be allowed to cure for 24 hours at 20°C, and then be oven cured for a minimum of 3 hours at 80°C

Packaging & Availability

Packaging Type: Totes (IBC)
Packaging: Crystic® 782PA is available in 25kg, 200kg and 1 ton containers. Bulk supplies can be delivered by road tanker

Storage & Handling

Storage: Crystic® 782PA should be stored in the dark in suitable closed containers. It is recommended that the storage temperature should be less than 20°C where practical, but should not exceed 30°C. Ideally, containers should be opened only immediately prior to use.
Pot Life: The amount of catalyst needed will depend on the required geltime, and the temperature of the workshop and mold, and be approximately determined from the table below.

Temperature (°C) Pot Life in Minutes Using Trigonox 44B

1.0 1.5 2.0

20 - - 19

25 - - 12

40 5 4 3

50 - - 2

The resin, mold and workshop should all be at, or above, 15°C before curing is carried out.

Crystic® Transfer Moulding Resin 782PA

Temperature (°C)	Pot Life in Minutes Using Trigonox 44B
	1.0	1.5	2.0
20	-	-	19
25	-	-	12
40	5	4	3
50	-	-	2